Lamps



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runners M.- 'RANDELL, or GREENBUZRG'QNEW YORK.

Letters Patent No. 110,868, dated January it, 1871.

l'he Schedule referred to in these Lotta-[Fatwa and at the name.

To all whom it may concern Beit known that I, FRANCIS M..Rstmnnn, of thetown of Greenburg Westchester county, State of New York, have invented anew and improved Apparatus for Supplying Na'phtha to Vapor-burningStreet- Lamps; and I do hereby declare that the following is a full,clear, and exact description thereof, which will enable others skilledin the art to make and use the same, reference being. had to theaccompanying drawing forming part of this specification.

Figure 1 is a central vertical section of my invention.

The object of my invention is to place in every separatelamp-post, oradjoining thereto, a tank containing.

sufiicient naphtha or gasoline. to supply a burner for one or more weeksby placing the liquid in the base or lower part 'of the lamp-post, or ina separate tank buried in the ground adjoining the lamp-post andconnected therewith by proper supply-pipes. The liquid,

I raise to the burner by compressed air contained in the naphtha-tank.

Hitherto the liquid has been supplied to vapma burning strectdampsby'elevating the naphtha-tank above the flame,and the required pressurehas been obtained by the falling column of liquid. The small quantity'ofnaphthaoontaiued in a tank thus arranged requires the supply to bealmost daily replenished. Thelabor and expense of the repeated refillingof the naphtha-tank is a great drawback to the use of this method ofstreet-lighting. L

My improvements are intended to remedy these defects, and are carriedout as is hereinafter more fully set forth.

In the drawing- 'A is the tank or reservoir formed in the base of thelamp-post. This tank is supplied with gasoline by forcing the liquiddown through pipe 0. The airin the upper part of the tank becomescompressed in proportion to the pressure put upon the liquid forced intoit. The accumulated air-pressure drives the naphtha up pipe' 0 to theburner; In thisway pipe 0 serves both as i'eetly air-tight joint.

To fill the tank, I conduct. naphtha under pressure, by means of asuitable pipe, from a reservoir to the inlet-cock Gr.-- When thisjcockis open theliquid will flow into tank A from the reservoir until thepressure in the tank and reservoir is equalized. The fillingcock is thenclosed and the lamp is ready for-lighting.

Tb prevent the naphtha being stolen or tampered with,1 make the cock Gso that it can be turned only;

by a certain key kept in the possession of the lamplighter. v 4

Having now described my invention, and the manner of putting the same inoperation, I woulll have .it

distinctly understood that I lay no claim to any of the parts separatelyexcept for the purposes of my invention.

'I claim- T The combination, with a street lamp-post, of thenaphtha-reservoir, pipe, and cooks, for the purpose of filling thereservoir with naphtha and supplying the latteuto the burner -underpressure, as described.

FRANCIS M. RANDELL. 4

.Witnesses J OSHUA Knm, S. H. HILTON.

